package com.changgou.system.filter;

import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

import java.net.InetSocketAddress;

/**
 * 获取客户端的ip
 */
@Component
public class IpFilter implements GlobalFilter, Ordered {

  @Override
  public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
    //1. 客户客户端的访问ip
    ServerHttpRequest request = exchange.getRequest();
    InetSocketAddress remoteAddress = request.getRemoteAddress();
    String hostName = remoteAddress.getHostName();
    System.out.println("ip"+hostName);
    // 2.让当前的过滤器进行放行,
    return chain.filter(exchange);
  }

  @Override
  public int getOrder() {
    return 1;
  }
}
